Health-state of complete physical and cordial wellbeing and not further the absence of ailment Disease-condition that disturbs, or has the probable to disturb the bodies functions Infectious disease-caused by a pathogen Non-infectious disease-caused by a fail of the personate Contagious-easily spread Non-contagious eg. Oppurtunistic infections Pathogens-disease causing organisms Micro-organisms-too small to be seen Macrorganisms-can be seen with eye Endoparasites-live in bole eg worms Ec bloomarasites-live outside proboscis eg. Lice Pathogens be parasites that cause disease Bacteria-infect innkeepers eg. TB Prions-proteins g one(a) upon eg. Mad cow disease Virus-a cellular telephoneular molecules that alert and use cells processes for their own benefit eg. Chicken pox Fungi-spores spores release enzymes to brush up cells eg. Tinea Protozoa-invade organic structure to transmit a leak nutrients or reproduce eg. Malaria Parasites--cause disease by injecting substances that act on toxins eg. Tapeworm Vectors-organism that transmits a disease take homunculus one host to another Antigens are proteins on top of invading bodies which convey that it is alien Macrophages-detect antigens and trigger resistive system 1-Line of defence-barriers-eyes, eats, mouth, digestive tract, skin, urinogenital tract, 2-Inflammation response- pus, swelling, redness, pain (histamines) heat 3-Phagocytes-engulf and set have pathogens T-cells-helper-trigger immune system         -Cytotoxic killer-destroy the invaders         -Suppressant-shut down immune response         -Memory cells-remember which antibodies for next time B-cells-produce antibodies which join antigens to put to work antibody/antigen complex         -memory cells to stay in body When macrophages advance across an antigen it engulfs and breaks it down into pieces.
It one-time(prenominal) displays these pieces and when helper t-cells encounter this cell they produce b and t cells. Immunization-the process in which the body develops the ability to fight diseases by producing antibodies and memory cells Vaccination-the act of receiving a substance so that the body will develop electric resistance to a specific disease. Water treatment- Primary-screening and degritting (removal of gigantic debris and grit) Â Â Â Â Â Â Â Â -flocculation (mix water with chemicals to form suspended... That is a very nifty paper, except if I were you, I wouldve written it like in a paragraph. (EX: Health is a state of disease... etc.) other than that its a really good paper. goodjob. If you ask to get a forward-looking essay, order it on our website:
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